Cloud Infrastructures - 3.1

Cloud

Responsibility Matrix: Defines what the customer and the cloud provider are responsible for managing. In shared responsibility models, cloud providers typically manage the infrastructure (hardware, network, data centers), while customers handle things like data, access management, and configurations.
Hybrid Cloud: Organizations use a combination of on-premises infrastructure, private cloud services, and public cloud services. This increases the complexity of security management, as policies need to be applied consistently across multiple environments.
Third-Party Vendors and the Cloud: Auditing the security posture of third-party vendors is essential to ensure the secure operation of the entire cloud architecture. This includes ensuring compliance with regulations and standards like SOC 2, ISO 27001, and others.

IaC refers to managing and provisioning infrastructure through machine-readable scripts (e.g., JSON, YAML) rather than through manual processes. This allows for the automation of infrastructure deployment and ensures consistent environments. It also enhances scalability and reduces human error when replicating infrastructure across multiple cloud providers.

Serverless architecture enables developers to build and run applications without managing the underlying infrastructure. Instead of managing servers, developers write functions, and the cloud provider handles the execution. This model is highly cost- and resource-efficient because billing is based on the execution of functions, not on server uptime.

Microservice Architecture involves designing applications as a collection of small, loosely coupled services that communicate via APIs. Each microservice focuses on a specific function or business capability, which allows for independent development, deployment, and scaling of individual components.
This architecture provides greater scalability, resilience, and security compared to monolithic applications, as each service can be updated, deployed, or scaled independently without affecting the entire system.